MIJ Co., Ltd., established in 2016, is a digital healthcare company specializing in ear health.
Under the vision of “Hearing is Life, Life is ETEREO,” we aim to improve the quality of life for people suffering from tinnitus and hearing loss through innovative medical devices and health supplements.

Our flagship products include the ‘TC SQUARE’, an integrated tinnitus care solution combining hardware and software, and ‘Gwihayeo Gold’, an oral dissolving film (ODF)-type health supplement containing nutrients beneficial for ear health.
Especially, Gwihayeo Gold is classified as a general food product, making customs clearance for overseas export much simpler and faster.

TC SQUARE is the first portable tinnitus treatment medical device in Korea that combines bone conduction technology with personalized sound therapy.
It allows chronic tinnitus patients to use it for long hours without location constraints, offering excellent treatment compliance and effectiveness compared to conventional therapies.

MIJ is targeting not only the domestic market but also major global markets including the United States, Europe, and Japan, where the medical device and digital healthcare industries are highly developed.
Our primary customer profiles include elderly people who need hearing care, socially active adults in their 20s to 50s, and patients with increasing tinnitus and hearing loss.

In particular, we focus on severe and chronic tinnitus patients who require continuous symptom management.
Our targeted marketing strategy also extends to unique segments such as military personnel suffering from tinnitus caused by firearms and artillery training.

MIJ will continue to lead the ear health market by providing innovative solutions and pursuing global partnerships to enhance people’s quality of life worldwide.